AA-lib is a low level gfx library just as many
other libraries are. The main difference is that
AA-lib does not require graphics device. In fact,
there is no graphical output possible. AA-lib
replaces those old-fashioned output methods with a
powerful ASCII art renderer. The API is designed
to be similar to other graphics libraries.

Alambic is an enterprise class solution for
creating and distributing PDF documents in the
home or corporate environment. Implemented as a
CUPS backend, it is able to generate PDF documents
and make them available by email or HTTP. It can
use any PostScript to PDF converter, though
Ghostscript is the converter of choice used during
development.

Apache XML Graphics Commons is a library that
consists of several reusable components used by
Apache Batik and Apache FOP. Many of these
components can easily be used separately outside
the domains of SVG and XSL-FO. You will find
components such as a PDF library, an RTF library,
Graphics2D implementations that let you generate
PDF and PostScript files, and much more.

Argyll is an ICC compatible color management system. It supports accurate ICC profile creation for scanners, CMYK printers, and film recorders, and calibration and profiling of displays. Spectral sample data is supported, allowing a selection of illuminants observer types, and paper fluorescent whitener additive compensation. Profiles can also incorporate source specific gamut mappings for perceptual and saturation intents. Gamut mapping and profile linking uses the CIECAM02 appearance model, a unique gamut mapping algorithm, and a wide selection of rendering intents. It also includes code for a fast 8-bit raster color conversion engine as well as support for fast, fully accurate 16-bit conversion. Device color gamuts can also be viewed and compared using a VRML viewer.

Asaph is a tool for Christian music groups and worship leaders for managing song databases. Its features include searching, manipulating chord markings, printing lead sheets, and generating presentations for use in group worship.

Bidwell (named for Shelford Bidwell, the inventor of the first true fax machine way back in the late 1800s) is a set of Perl scripts that are designed to run as a cron job on a Unix-like system to download emails from a POP3 account and send their contents to a CUPS or lpr printer.